313320031 has 16 divisors (see below), whose sum is σ = 332100000. Its totient is φ = 295152256.

The previous prime is 313320023. The next prime is 313320041. The reversal of 313320031 is 130023313.

It is not a de Polignac number, because 313320031 - 2³ = 313320023 is a prime.

It is a super-2 number, since 2×313320031² = 196338883651681922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313319987 and 313320014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313320041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254325 + ... + 255553.

It is an arithmetic number, because the mean of its divisors is an integer number (20756250).

Almost surely, 2^313320031 is an apocalyptic number.

313320031 is a deficient number, since it is larger than the sum of its proper divisors (18779969).

313320031 is a wasteful number, since it uses less digits than its factorization.

313320031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1466.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 313320031 is about 17700.8483130047. The cubic root of 313320031 is about 679.1974607957.

Adding to 313320031 its reverse (130023313), we get a palindrome (443343344).

The spelling of 313320031 in words is "three hundred thirteen million, three hundred twenty thousand, thirty-one".